Implement in-process PPB_VarArrayBuffer_Dev.

webkit/plugins/ppapi/host_array_buffer_var.h

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef PPAPI_WEBKIT_PLUGINS_PPAPI_HOST_ARRAY_BUFFER_VAR_H_
+#define PPAPI_WEBKIT_PLUGINS_PPAPI_HOST_ARRAY_BUFFER_VAR_H_
+
+#include "ppapi/shared_impl/var.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebArrayBuffer.h"
+
+namespace webkit {
+namespace ppapi {
+
+// Represents a host-side ArrayBufferVar.
+class HostArrayBufferVar : public ::ppapi::ArrayBufferVar {
+ public:
+  explicit HostArrayBufferVar(uint32 size_in_bytes);
+  explicit HostArrayBufferVar(const WebKit::WebArrayBuffer& buffer);
+  virtual ~HostArrayBufferVar();
+
+  // ArrayBufferVar implementation.
+  virtual void* Map() OVERRIDE;
+  virtual uint32 ByteLength() OVERRIDE;
+
+  WebKit::WebArrayBuffer& webkit_buffer() { return buffer_; }
+
+ private:
+  WebKit::WebArrayBuffer buffer_;
+
+  DISALLOW_COPY_AND_ASSIGN(HostArrayBufferVar);
+};
+
+}  // namespace ppapi
+}  // namespace webkit
+
+#endif  // PPAPI_WEBKIT_PLUGINS_PPAPI_HOST_ARRAY_BUFFER_VAR_H_